MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c4a7bd323df62e4d4df684b3456a100064232aeef67e498dfc853c5b7d5e931c. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Mirai


Vendor detections: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c4a7bd323df62e4d4df684b3456a100064232aeef67e498dfc853c5b7d5e931c
SHA3-384 hash: 2152c498115fd74dea289dd61e1d80cfb37df7beff88e3531810e0c3c575352d6ec5e52619235a3b1da17c3a1eeaa6a1
SHA1 hash: 1d81635ea4040e9fc816453d2da45d7981eab0a9
MD5 hash: 36e8177ee200fb5a316af4e51f25a87d
humanhash: fillet-princess-south-potato
File name:bot.arm
Download: download sample
Signature Mirai
Create hunting rule
File size:49'848 bytes
First seen:2025-04-20 14:58:51 UTC
Last seen:Never
File type: elf
MIME type:application/x-executable
ssdeep 1536:Npaa2H0XIh8yAkuTVFr+uCscsEoFhcHBzH:NYaAu4AkuP+u6joFhwz
TLSH T1AB23F116C6C69EE046241939F71857ECAB7C21EFC2EFA67D120CD62E461B427C16CD12
TrID 50.1% (.) ELF Executable and Linkable format (Linux) (4022/12)
49.8% (.O) ELF Executable and Linkable format (generic) (4000/1)
Magika elf
Reporter abuse_ch
Tags:elf UPX
File size (compressed) :49'848 bytes
File size (de-compressed) :133'888 bytes
Format:linux/arm
Unpacked file: 616e2826d4c027924809731e7eacbcbf8b0cc3023afad78e7833e70b8c0c3197

Intelligence

File Origin
# of uploads :
1
# of downloads :
137
Origin country :
DE DE
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Linux.Siggen.9999.1444.20503.UNOFFICIAL
Create hunting rule

Verdict:
Clean
Score:
82.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68050bc92203b3e10cd1e5d4linux22vpnfull_triage
Tags:
n/a
Result
Verdict:
Malware
Maliciousness:
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
masquerade packed upx
Link:
https://www.filescan.io/uploads/68050bc4ed72ab1a1d4c8e06/reports/6fb00f9e-3ff0-427a-97c7-542dc59e3d18/overview
Verdict:
Malicious
Uses P2P?:
false
Uses anti-vm?:
false
Architecture:
arm
Packer:
UPX
Botnet:
unknown
Number of open files:
49
Number of processes launched:
2
Processes remaning?
true
Remote TCP ports scanned:
not identified
Full report:
https://elfdigest.com/brief/c4a7bd323df62e4d4df684b3456a100064232aeef67e498dfc853c5b7d5e931c
Behaviour
Process Renaming
Botnet C2s
TCP botnet C2(s):
type:Moobot 94.156.115.12:43957
UDP botnet C2(s):
not identified
Malware family:
Mirai
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6abc2936-5317-4247-a6b6-def822046f58
Result
Threat name:
Gafgyt, Mirai, Okiru
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1669856
Signature
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sample is packed with UPX
Sends malformed DNS queries
Uses dynamic DNS services
Yara detected Gafgyt
Yara detected Mirai
Yara detected Okiru
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1669856 Sample: bot.arm.elf Startdate: 20/04/2025 Architecture: LINUX Score: 100 18 ddwall.duckdns.org. [malformed] 2->18 20 109.202.202.202, 80 INIT7CH Switzerland 2->20 22 3 other IPs or domains 2->22 24 Malicious sample detected (through community Yara rule) 2->24 26 Multi AV Scanner detection for submitted file 2->26 28 Yara detected Okiru 2->28 34 3 other signatures 2->34 8 bot.arm.elf 2->8         started        10 dash rm 2->10         started        12 dash rm 2->12         started        signatures3 30 Sends malformed DNS queries 18->30 32 Uses dynamic DNS services 18->32 process4 process5 14 bot.arm.elf 8->14         started        process6 16 bot.arm.elf 14->16         started       
Score:
100%
Verdict:
Malware
File Type:
ELF
Link:
https://malprob.io/report/c4a7bd323df62e4d4df684b3456a100064232aeef67e498dfc853c5b7d5e931c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c4a7bd323df62e4d4df684b3456a100064232aeef67e498dfc853c5b7d5e931c/
Threat name:
Linux.Trojan.Svirtu
Create hunting rule
Status:
Malicious
First seen:
2025-04-20 14:59:17 UTC
File Type:
ELF32 Little (Exe)
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yst32mr56yxe2tpwqszuk2qqabscgkxo6z7etdp4qu6fw7k6smoa._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
upx
Link:
https://tria.ge/reports/250420-scrw8a1rx2/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c4a7bd323df62e4d4df684b3456a100064232aeef67e498dfc853c5b7d5e931c

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:SUSP_ELF_LNX_UPX_Compressed_File
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects a suspicious ELF binary with UPX compression
Reference:Internal Research
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:upx_packed_elf_v1
Create hunting rule
Author:RandomMalware

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Mirai

sh 394e8923d75fa08a78a11e9c4cfd63dc1e7bde5d1c376c23c9abebf8aa2bd4d3

Mirai

elf c4a7bd323df62e4d4df684b3456a100064232aeef67e498dfc853c5b7d5e931c

(this sample)

Mirai

elf 616e2826d4c027924809731e7eacbcbf8b0cc3023afad78e7833e70b8c0c3197

  
Dropping
SHA256 616e2826d4c027924809731e7eacbcbf8b0cc3023afad78e7833e70b8c0c3197
  
Dropping
MD5 c35faf5af1d4d9a8dcc0a6574512a533
  
Dropped by
SHA256 394e8923d75fa08a78a11e9c4cfd63dc1e7bde5d1c376c23c9abebf8aa2bd4d3
  
Dropped by
MD5 61fdf9e750d9e48081d748d140650d77
  
Dropped by
SHA256 b40f5fd7420943d31ac58180dcdc9d8eb8d49f973be3e5791120b0189eb5e8bf
  
Dropped by
MD5 4b7f5c93712521b19b1e572dbd7b2524
  
Dropped by
SHA256 ff457cc4b90c5c28ce85107b386fddfb4a7dd42c9c401a9598a46ce36b43a5b5
  
Dropped by
MD5 583ec7348c3817d757ee5844f665f293
  
URLhaus
https://urlhaus.abuse.ch/url/3519784/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3519808/
  
URLhaus
https://urlhaus.abuse.ch/url/3519772/
  
URLhaus
https://urlhaus.abuse.ch/url/3519805/
  
URLhaus
https://urlhaus.abuse.ch/url/3519774/
  
URLhaus
https://urlhaus.abuse.ch/url/3519810/
  
URLhaus
https://urlhaus.abuse.ch/url/3519775/
  
URLhaus
https://urlhaus.abuse.ch/url/3519804/

Comments